Brain Teasers User Profile
Thinh Ddh
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rank
2
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points
4753
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Philipp LenardDied 20 May 1947 at age 84 (born 7 Jun 1862). Philipp Eduard Anton von Lenard was a Hungarian-German physicist who received the 1905 Nobel Prize for Physics for his research on cathode rays. He discovered they could leave a cathode ray tube, penetrate thin metal sheets, and travel a short distance in the air, which would become conducting.. In 1902, he observed that a free electron (as in a cathode ray) must have at least a certain energy to ionize a gas by knocking a bound electron out of an atom. His estimate of the required ionization energy for hydrogen was remarkably accurate. Also in 1902, he showed that the photoelectric effect produces the same electrons found in cathode rays, that the photoelectrons are not merely dislodged from the metal surface but ejected with a certain amount of energy. |
Jokes About Age
OLD MUSICIANS never die, they just get played out
OLD MUSICIANS never die, they just go from bar to bar
OLD NUCLEAR POWER PLANTS never die, they just go off-line
OLD NUMERICAL ANALYSTS never die, they just get disarrayed
OLD OWLS never die, they just don't give a hoot
OLD PACIFISTS never die, they just go to peaces
OLD PARADOXES never die, they just become enigmas
OLD PHOTOGRAPHERS never die, they get sent to the old focus home
OLD PHOTOGRAPHERS never die, they just stop developing
OLD PILOTS never die, they just buzz off
OLD PILOTS never die, they just go to a higher plane
OLD PLANETS never die, they just lose their attraction
OLD PLASTIC never dies, they just recycle it
OLD PLUMBERS never die, they just go down the drain
OLD POLICEMEN never die, they just cop out
OLD MUSICIANS never die, they just go from bar to bar
OLD NUCLEAR POWER PLANTS never die, they just go off-line
OLD NUMERICAL ANALYSTS never die, they just get disarrayed
OLD OWLS never die, they just don't give a hoot
OLD PACIFISTS never die, they just go to peaces
OLD PARADOXES never die, they just become enigmas
OLD PHOTOGRAPHERS never die, they get sent to the old focus home
OLD PHOTOGRAPHERS never die, they just stop developing
OLD PILOTS never die, they just buzz off
OLD PILOTS never die, they just go to a higher plane
OLD PLANETS never die, they just lose their attraction
OLD PLASTIC never dies, they just recycle it
OLD PLUMBERS never die, they just go down the drain
OLD POLICEMEN never die, they just cop out